Man tags and genre is not about quality its about quantity... Survival Game tag covers 99-100% of Infinity like novels and that is good enough......
. horror + fanfic + game elements + survival = Infinity? episodic missions in different settings = infinity? All in all infinity is sub genre of...
Survival Game tag is what you looking for...
If such thing as "carefree MC" exist in cn novels then he should be top tier...
Separate names with a comma.